3 ms·
In theory black holes could do that. Some photons will slingshot around it and go straight back.
by spaetzleesser 5y ago
In theory black holes could do that. Some photons will slingshot around it and go straight back.
- wumpus 5y agoWe haven't seen a photon ring yet, and when we do, there won't be that much information in them. Perhaps after technology has advanced another 1000X...